What type of 18650?

Hey all,

I was looking for a 18650 battery for my laser (and also a charger) online, and there are many types of 18650 batteries, and ranging for 5$-14$. Obviously Im looking for cheap, but not so cheap it does not work efficiently *China cough*.
I was wondering if there is a specific 18650 brand that the laser enthusiasts here prefer? Let me know what works for you!

Posts with links much appreciated.

I use the Sanyo 18650's from LarryDFW. They work great, however I hear that AW is the best, but they are nearly double the price as the Sanyo ones.

There is another thread regarding these batteries:

http://laserpointerforums.com/f44/i-need-help-concerning-18650-batteries-45122.html

I never knowed that 18650 can be dangerous.

I order 2 weeks ago those things:
DealExtreme: $7.44 OEM 2*18650 Lithium Battery Charger (110V~240V AC)
DealExtreme: $6.75 TrustFire 18650 3.7V 2500mAh Rechargeable Lithium Batteries (2-Pack)
Can i trust those battery's?